Diamond-shaped central section defined by grooves on a face of a golf club head



FIG. 1 is a front view of a diamond-shaped central section defined by grooves on a face of a golf club head according to a preferred embodiment of our new design; and,

FIG. 2 is a front view of an alternate version of the diamond-shaped central section defined by grooves on a face of a golf club head according to the preferred embodiment of our new design.

The broken lines in an area surrounding grooves in accordance with our new design are illustrative of an exemplary golf club head that shows an environment in which a diamond-shaped central section defined by grooves on a face of a golf club head is associated. The exemplary golf club head does not form a part of the claimed design.

The broken lines in the diamond-shaped central section defined by grooves on a face of a golf club head according to the preferred embodiment, as shown in FIG. 2, are illustrative of exemplary additional grooves that show environments in which the diamond-shaped central section defined by grooves on a face of a golf club head are associated. The exemplary additional grooves do not form a part of the claimed design. 

The ornamental design of a diamond-shaped central section defined by grooves on a face of a golf club head, as shown and described. 